09-27-2001
restart inetd process
Here it is-
So far everything is good, you just wanna re-start inetd...
In Linux, you could use the service comand, but normally, all you need to do is "ps -ef | grep inet", now get the PID of the inetd proc, take that and send it a "kill -SIGUSR1" (see your kill manpage for a better idea of what signal to send), this will force the inetd process to re-scan it's conf file.
As I said, READ the kill man page BEFORE doing this, make sure you get the right signal, otherwise, you may kill inetd completely, and not be able to telnet (or anything) in to restart it. Another good idea is to be at the console if you are re-configging network stuff, just for safety's sake.
Later,
loadc
9 More Discussions You Might Find Interesting
1. Cybersecurity
This may be kind of a stupid question, but here goes:
Say I'm running a FreeBSD webserver (w/apache). I've managed to close ALL open ports (including SSH/telnet and portmapper), excepting '80' that apache is listening on. A netstat -a shows me nothing open.
Discounting DoS/DDoS or holes in... (7 Replies)
Discussion started by: adam_crosby
7 Replies
2. IP Networking
Hi all
Is there a command that I can use to close out open ports?
I did a netstat - a -p and got a long list of ports open (see sample below). I have disabled the some of the applications from /etc/services/. But there are still applications listening on certain ports.
I need to know how to... (6 Replies)
Discussion started by: skotapal
6 Replies
3. Shell Programming and Scripting
Hello, i need a script (bash type maybe?..), which would check open ports on 127.0.0.1 and then compare open ports with "registered/allowed" port list and try to kill the program who uses unregistered ports. It would be great that script would be started lets say every 5 or 10 minutes.
You see i... (2 Replies)
Discussion started by: MorchiuS
2 Replies
4. Solaris
Hello,
I have a number of Solaris 8 Sun servers that have open ports that I cannot identify. I see some with 1013-1023 (which are reserved ports according to the IANA. Lsof does not identify these. I rebooted the server and they went off, but this morning I saw they were all back on again. Any... (1 Reply)
Discussion started by: csgonan
1 Replies
5. Solaris
hi guys,
may i know the exact steps to open a port in solaris.i have some rough idea - which is adding the port number in /etc/services.
but i am not sure the correct conventions, steps or any other steps.
kindly advise.thanks guys ! (1 Reply)
Discussion started by: cromohawk
1 Replies
6. Shell Programming and Scripting
i have a text file i.e file1.txt which shows open ports on particular system. i have another text file i.e file2.txt which shows a list of allowed ports on a system. for eg:
file2.txt
22/tcp ssh
23/tcp telnet.
can i have a script which would compare these text files ,file1 and file2 ... (1 Reply)
Discussion started by: anand121
1 Replies
7. UNIX for Dummies Questions & Answers
just a quick question:
a. whats the simplest command to check open port and the corresponding services?
example:
bash-2.05# netstat -an | grep LISTEN
*.199 *.* 0 0 49152 0 LISTEN
*.8989 *.* 0 0 49152 ... (1 Reply)
Discussion started by: lhareigh890
1 Replies
8. IP Networking
Hi,
I have read some forum theads about the open and close ports. some points are clear and it is not working on my machine or something am i missing?
I have commented out a port /etc/services, one application uses
then when i use the telnet <hostname> <port_blocked> it shows connected..... (1 Reply)
Discussion started by: balamv
1 Replies
9. Shell Programming and Scripting
Hi guys,
i need to write a shell script that will close file descriptors from /proc/pid/fd
will calling exec 4<&- solve the problem ?
thanks in advance :) (15 Replies)
Discussion started by: alpha_romeo
15 Replies
LEARN ABOUT CENTOS
tcp-env
tcp-env(1) General Commands Manual tcp-env(1)
NAME
tcp-env - set up TCP-related environment variables
SYNOPSIS
tcp-env [ -rR ] [ -ttimeout ] program [ arg ... ]
DESCRIPTION
The input for tcp-env must be a TCP connection. tcp-env finds out information about that connection, puts the information into several
environment variables as described in tcp-environ(5), and runs program with the given arguments.
Usually tcp-env is run from inetd. It might instead be run from another server that already sets up the right environment variables; if
PROTO is set to TCP when tcp-env is invoked, tcp-env assumes that all the other variables are set up properly, and it does not check
whether the input is a TCP connection.
OPTIONS
-r (Default.) Attempt to obtain TCPREMOTEINFO from the remote host.
-R Do not attempt to obtain TCPREMOTEINFO from the remote host.
-ttimeout
Give up on the TCPREMOTEINFO connection attempt after timeout seconds. Default: 30.
SEE ALSO
tcp-environ(5), inetd(8)
tcp-env(1)